User - Interface Tips.
The idea of this section is to help Drupaliers create sites which focus on following.
1. Usability - How quickly and easily can user start using your drupal site
2. Navigability - How easily can user navigate to the content they want.
3. Visuals - How is the visual appeal of the site? Is there a proper use of colors, theme features. etc.
4. Sorting - How many ways the user can filter and sort the content so that he can make effective and efficient use of site content.
With the above intent in mind, few tips are added below. Feel free to add your tips and help others.